Battery pack for a portable electronic device



FIG. 1 is a top, front, left side perspective view of a battery pack for a portable electronic device showing our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a left side elevation view thereof. 

The ornamental design for a battery pack for a portable electronic device, as shown. 